Intramuscular forearm metastasis as an initial presentation of bronchial adenocarcinoma.

Painful soft tissue masses may in rare instances correspond to intramuscular metastases from an unknown malignant neoplasia. We report an unusual case of a muscular metastasis to the flexor compartment of the forearm as the first clinical manifestation of an asymptomatic bronchial adenocarcinoma in a 46-old-year man.